Research Article
Mastication Wear of Two Low Profile Attachment Systems for Overdenture: An In Vitro Study
Table 3
Results of the retention test performed with pink matrix.
(a) |
| | Test ° | 1 | 2 | Difference between 1 and 2 | Matrix | 0 cycles | 400.000 cycles | Group | Attachment | Patrix | 0 cycles | 400.000 cycles |
| A | L | Mean ± SD | 24.1748 ± 3.2646 | 19.1077 ± 0.5004 | -20.96% | A | NL | 24.6844 ± 3.6536 | 19.3199 ± 0.9977 | -21.73% | B | L | 31.4685 ± 4.0374 | 18.0411 ± 1.4338 | -42.67% | B | NL | 35.0551 ± 2.875 | 15.746 ± 1.501 | -55.08% |
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(b) |
| | Test ° | 3 | 4 | Difference between 3 and 4 | Matrix | 0 cycles | 400.000 cycles | Group | Attachment | Patrix | 400.000 cycles | 800.000 cycles |
| A | L | Mean ± SD | 25.7573 ± 2.4303 | 20.4907 ± 0.6287 | -20.45% | A | NL | 25.4889 ± 3.789 | 21.4927 ± 1.1888 | -15.68% | B | L | 32.649 ± 4.2927 | 21.5418 ± 1.6351 | -34.02% | B | NL | 29.2533 ± 3.6557 | 24.5668 ± 2.3136 | -16.02% |
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(c) |
| | Test ° | 5 | 6 | Difference between 5 and 6 | Matrix | 0 cycles | 400.000 cycles | Group | Attachment | Patrix | 800.000 cycles | 1.200.000 cycles |
| A | L | Mean ± SD | 26.2802 ± 3.5966 | 23.2298 ± 1.2188 | -11.61% | A | NL | 26.5362 ± 2.4276 | 21.0904 ± 0.7476 | -20.52% | B | L | 33.178 ± 7.0549 | 21.0805 ± 2.0535 | -36.46% | B | NL | 49.3771 ± 6.9115 | 21.941 ± 3.3065 | -55.56% |
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L: loaded side. NL: non-loaded side. All data, except for differences expressed as a percentage, are expressed in Newtons.
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